Actinopterygii (ray-finned fishes) > Anguilliformes
(Eels and morays) > Muraenidae
(Moray eels) > Muraeninae
Etymology: Gymnothorax: Greek, gymnos = naked + Greek, thorax, -akos = breast (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; brackish; reef-associated; depth range 0 - 25 m (Ref. 37816). Tropical; 30°N - 24°S
Indo-Pacific: Red Sea and East Africa (Ref. 33390) to the Tuamoto Islands, north to the Ryukyu and Hawaiian islands, south to Australia. Eastern Central Pacific: Costa Rica and Panama (Ref. 9324) and the Galapagos (Ref. 2334).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 38.7 cm TL male/unsexed; (Ref. 90102)
Occurs in shallow lagoon and seaward reefs, primarily found in the surge zone (Ref. 9710). Benthic (Ref. 58302). Lives between rocks and corals.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Chen, H.-M., K.-T. Shao and C.T. Chen, 1994. A review of the muraenid eels (Family Muraenidae) from Taiwan with descriptions of twelve new records. Zool. Stud. 33(1):44-64. (Ref. 6934)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 25.5 - 29.3, mean 28.4 (based on 2903 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00145 (0.00083 - 0.00251), b=3.09 (2.94 - 3.24), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.8 ±0.65 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (35 of 100) .